矸石充填 meaning in Chinese
waste fill
Examples
- Design and application of waste filled system
矸石充填系统的设计与应用 - Test research on permanent pillar mining with coal refuse backfilling
矸石充填巷式开采永久煤柱试验研究 - The development and application of underground roadway waste packing unit
井下巷道矸石充填设备的研制与应用